Automatic oiling device.



' No. 686,863. Patented Nov. l9, 19m.

.1. n. McFARLAND, .IR.

AUTOMATIC OILING DEVICE.

(Application filed Mar. 13. 1901.) (No Model.)

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UNTTED STATES PATENT OFFICE.

JAMES D. MOFARLAND, JR, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OFONE-HALF TO JOHN BRUCKMAN, OF SAN FRANCISCO, CALIFORNIA.

AUTOMATIC OILING DEVICE.

SPECIFICATION forming part of Letters Patent No. 686,863, dated Novernber 19, 1901.

Application filed March 13, 1901. Serial No. 50,949. (No model.)

T0 aZZ whom it may concern:

Be it known that 1, JAMES D. MCFARLAND, J r., a citizen of the UnitedStates, residing in the city and county of San Francisco, State ofCalifornia, have invented an Improvement in Automatic Oiling Devices;and I hereby declare the following to be a full, clear, and exactdescription of the same.

My invention relates to improvements in oiling devices forpiston-cylinders and other moving parts where oil must be fed withunceasing regularity.

It consists, essentially, of an oil-containing vessel, a double-headedpiston-valve adapted to reciprocatein an openingin said vessel, and anoil-passage in this valve through which the oil may pass intermittentlyfrom the vessel to the part to be lubricated.

It also consists of means by which the amount of oil delivered may belimited and of details more fully to be hereinafter set forth.

Having reference to the drawings, Figure 1 is a vertical section throughthe oiling device and connections. Fig. 2 is a modification thereof online y y of Fig. 3. Fig. 3 is a horizontal section of the valve on lineat w of Fig. 2. Fig. 4 shows the valve without a channel.

In the drawings I show my invention in connection with a part of thecylinder of a gasengine of the automobile type and wherein the cylindersare quite small and a screwplug serves for the cylinder-head, said headhaving a passage through it through which the exhaust and suction takeplace. As shown therein,3 is a cup,of suitable shape and size, having anextended bottom portion 4. Through this extension the piston-valve 5 isslidable. This valve is provided with heads 6 and 6, having suitableseats 7 and 7, respectively,in the portion 4. These heads are preferablycone form, as shown. A longitudinal channel 8 is made in the valveintermediate of the heads 6 and 6. The length of this channel may bevaried according to the size, uses, &c., of the valve. It is throughthis channel that the oil is fed from the cup to the parts to belubricated. When the valve is pushed upwardly into the cup, the oilflows into this channel, the walls of which, with the B. Thereciprocation of the piston B in the.

cylinder alternately fills and exhausts the cylinder, causing areciprocation of the valve 5. With each explosion and exhaustion of thecylinder the valve is forced upward by the pressure and the channel 8allowed to fill. With each suction the valve drops down and dischargesits oil. F urthermore, only so much oil as is contained in the channelis discharged.

As a means of regulating the amount of feed I have shown in Fig. 2 amodification wherein the channel 8 is circular in form and threaded andextending through the head 6 of the valve. This channel is placedeccentrically of the valve, and a suitable longitudinal slot 8 leavesthe channel 8 practically open except where it passes through the head 6for the reception and discharge of oil as before. A regulating-stem 9screws into the threaded channel 8 and the length of the oilreceivingportion of the channel varied accordingly. The stem passes upwardlythrough a guide 10 in the top of the cup, and by means of this guide andby reason of the eccentric position of the stem in relation to the valvethe latter is prevented from turning.

While I have shown my device here in conjunction with a cylinder andpiston and operated in the manner described, it is understood that othermeans may be employed to reciprocate the valve.

Though Ihave described this valve as channeled, such channel may bedispensed with entirely by simply making the valve 5 of a lesserdiameter than the interior diameter of the extension 4, thus forming anannular oil-conducting space between the heads of the valve. As thevalve is lifted the oil will fiow around the valve and fill the space,and as the valve drops the head 6 will seat as before, closing theoil-cup, and the oil will be dis charged.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. The combination in an automatic oiler of a cup, an opening in thebottom of the cup, a valve slidable therein, flanges on either end ofsaid valve, seats upon the inner and outer ends of said opening toreceive said flanges, an open channel in said valve intermediate of'theflanges, and means whereby the length of the oil-channel may be varied.

2. The combination in an automatic oiler, of a cup, an opening in thebottom of the cup, a valve slidable therein, flanges on either end ofsaid valve, seats for said flanges, a longitudinal channel in said valvethrough which the oil is intermittently discharged from the cup, andmeans whereby the length of this channel may be varied.

3. The combination in an automatic oiler, of a cup, an extension on thebottom of said cup, an opening in said extension, a valve slidable inthis opening, one end of the valve adapted to seat within the cup andthe other end provided with a seat exterior thereto, a

channel in said valve, and a stem fitting within this channel wherebythe length of the latter may be varied.

4. In an oil-cup adapted for application to a chamber in which vapor isalternately exhausted and filled, and having an opening into saidchamber, the combination of a valve slidable in said opening, one end ofthe valve adapted to seat within the cup and the other provided with aseat exterior thereto, a channel in said valve eccentric to the axis ofthe valve, said channel terminating short of the lower end of the valve,and a stem fitting within said channel and extending upwardly throughthe cup, by means of which stem the length of the channel is varied, andby the alternate exhaustion and suction of the cylinder, the valve ismade to reciprocate and alternately allow the channel to be filled withoil from the cup as the valve is lifted, and to discharge the oilcontained in said channel when the valve is depressed.

In witness whereof I have hereunto set my hand.

JAMES D. MOFARLAND, JR. WVitnesses:

S. H. NoURsE, JEssIE O. BRODIE.

